Before a development plan can be approved in the City of Santa Cruz, it must be found that the orientation and location of buildings, structures, open spaces and other features of the site plan preserve solar access of adjacent properties. In addition, buildings and structures should be designed and oriented to make use of natural elements such as solar radiation, wind and landscaping for heating, cooling and ventilation. Developers must also show that heating systems for hot tubs and swimming pools are solar when possible, and in all cases, energy efficient.